Help with follow Ai

So I have this AI it makes the enemy run towards the player, but when it hits the player it turns and runs. How can I fix this?

function Update(){

      var target = GameObject.FindWithTag("Player");
 var right = transform.TransformDirection(Vector3.right);
 var left = transform.TransformDirection(Vector3.left);
 var fwd = transform.TransformDirection(Vector3.forward);
  
 if (!Physics.Raycast(transform.position, fwd, 20) & !Physics.Raycast(transform.position, right, 40) & !Physics.Raycast(transform.position, left, 40)){
  
 transform.Translate(Vector3.zero);
 transform.LookAt(target.transform.position);
 transform.Translate(Vector3.forward * 15 * Time.deltaTime);
 }
 else if (!Physics.Raycast(transform.position, fwd, 20)) {
 transform.Translate(Vector3.zero);
 transform.Translate(Vector3.forward * 15 * Time.deltaTime);
 }
 else if (!Physics.Raycast(transform.position, right, 40)) {
 transform.Translate(Vector3.zero);
 transform.Rotate(0,25,0);
 }
 else if (!Physics.Raycast(transform.position, left, 40)) {
 transform.Translate(Vector3.zero);
 transform.Rotate(0,25,0);
 }
 }